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New and used
2026 GMC Sierra 1500 SLT trucks
for sale
near
Rancho Santa Margarita, CA
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I am thoroughly satisfied with Temecula Valley Buick
I am thoroughly satisfied with Temecula Valley Buick since I purchased my Encore GX in 2021. Always very personable and keep you informed as to how your service is progressing. William was my service technician today, and when my car was finished he walked me to my car and shook my hand before leaving. Nice gesture!! When my car needs service next time, that for sure will be my go to dealership.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Update to my original review
Ok so I am sure my 1st review is not gonna be deleted but I have a new review for them as they have addressed my concerns and Because of 1 persons actions I am completely satisfied with the repairs and commitment that JOHN in service has made sure I was completely satisfied with the repairs so a big THANK YOU to John and anyone else who worked on this I will definitely be taking my truck back for service
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The prices attracted me.
The prices attracted me. The customer service and experience/ level of knowledge was not great. There was an inconsistency of dealership policy. It would be nice to get a car for the price you expect. I felt forced to purchase items I did not want
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Good experience
Great experience. Simple and easy. Great staff. Definitely would recommend.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Dealer add ons are extremely high, we were able to work
Dealer add ons are extremely high, we were able to work on some of those numbers. Still high after bargaining, but I agreed since I wanted this truck. When Mariah came back with financing option, I come to find out that we can't finance outside, it has to be their financing or pay cash! Can you believe this? After everything done with salesperson, had to wait for finance. Sat for over an hour &1/2. Employess kept walking in & out of finance office, some eating, while customer just waiting.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Staff was friendly but i left without being able to have
Staff was friendly but i left without being able to have my app hooked up to my car and I was looking forward to that feature
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Felipe was so friendly and helpful when purchasing my
Felipe was so friendly and helpful when purchasing my first EV. The contracts were easy to understand, review and sign.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had an amazing experience yesterday at Tustin GMC &
I had an amazing experience yesterday at Tustin GMC & Buick with Seth R.. I called him the night before to ask about the Sierra EV 2025, and he got right on it! We got the deal done in minutes, charged up the truck, and it was waiting for me to pick it up the next morning because I couldn?t make it that evening. This dealership is incredible! I usually buy luxury vehicles, and the service was just as great as when I do business with Porsche or Land Rover. George in finance was nothing short of amazing as well. The management is doing an incredible job keeping them going because they have such a great team. Every turn was met with a smile, and even in workout clothing, I felt like a valued customer. Thanks to Seth and George, this dealership is now my new pick-up truck home, and I?ll definitely be buying my pick-up trucks through Tustin GMC & Buick in the future.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Experience was excellent!
Experience was excellent! Everything was so smooth and easy! We are so happy with our purchase! Highly recommend Danny from GMC! Customer service was on point!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
168 listings starting at $45,975
-
GMC Sierra 1500 2026 SLT
87 listings starting at $51,521
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GMC Sierra 1500 2026 Denali
71 listings starting at $66,735
-
GMC Sierra 1500 2026 Denali Ultimate
68 listings starting at $77,535
-
GMC Sierra 1500 2026 AT4X
60 listings starting at $75,747
-
GMC Sierra 1500 2026 AT4
43 listings starting at $66,742
-
GMC Sierra 1500 2026 Pro
22 listings starting at $37,780
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
